[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"external-writing-1139":3},{"payload":4,"id":7,"user":8,"level":14,"course":15,"activity":16,"activity_slug":17,"title":6,"topic":18,"tone":19,"stats":20,"created":22,"score":23,"is_favorite":24,"public":25,"is_external":24},{"text":5,"exercise_title":6},"You recently attended a highly anticipated business conference that was promoted as an excellent networking opportunity with renowned industry experts. However, you found that several keynote speakers cancelled without replacement, the schedule was repeatedly changed at the last minute, and the event lacked sufficient space for workshops, resulting in overcrowding. Furthermore, essential materials promised to attendees were not provided. Write a formal letter of complaint to the conference organisers, explaining your dissatisfaction with the event, describing the main issues encountered, and requesting appropriate compensation or remedial action.","Disappointing Business Conference Experience",1139,{"id":9,"username":10,"first_name":11,"last_name":12,"image":13},20253,"james-ford","James","Ford","https://storage.googleapis.com/uoepro_files/prod/useofenglish_ai/users/avatar/20253-b2rl4g.jpg","C1","Writing","Letter","letter","A formal letter close to actual C1 difficulty.","Standard",{"times_played":21,"num_favorites":21},0,"2026-06-11T22:41:47",null,false,true]